Automatic hoisting device.



E. BARRETT. AUTOMATIU HOISTING DEVICE.

APPLICATION FILED JULY3,1908. 901,943; Patented 0012.27, 1908.

3 SHEETS-SHEET 1. I 13 .1 m

ali i) 2' fizz/6722507.

E. E.'BABRBT'1. AUTOMATIC HOISTING DEVIGE.

APPLICATION IILBD JULY 3 1908 Patented 00c. 27, 1908. 3 BHEETB-BHEET 2.

IZZY/e72 1, 07

'E. E. BARRETT.

AUTOMATIC HOISTIN G DEVICE.

nrtxoumn FILED JULY s, 1908.

227/672 0 3' v fin mt 3 SHEETS-SHEET 3 Patented 0cfi.27,1908.

Rib

EDWARD E. BARRETT, OF LA GRANGE, ILLINOIS.

AUTOMATIC HOISTING DEVICE.

Specification of Letters Patent.

Patented Oct. 27, 1908.

Application filed July 3, 1908. Serial No. 444,779.

'1 '0 all 11. 7; cm it may concern:

Be it known that l, Enwann E. lb lmlc'nr,

Grange, in the county of (look and State of Illinois, have invented a certain new and useful improvement in Automatic lloisting Deyices, of which thed'ollowing is a. specilicw tion.

My invention relates to automatic hoisting devices.

it is illustrated in the accompanying drawings, wherein Figure 1 is a vertical section through a shaft containing two hoisting receptacles, the parts shown diagrammatimtlly; Fig. 2 is a detail cross section on the line 2-2 of Fig.

1; Fig. 3 is a detail side elevation of the power device. and associated mechanism, with parts broken away. Fig. 4 is a detail of the power operating lever.

Like parts are indicated by the same letter in all the figures.

A, A are the framing parts on which the several devices are mounted, and A A the pit walls and bottom.

B, B are receptacles, in this case buckets, united by a unmon cable B which passes over pulleys B B at the top, guide pulleys B B, and about the drum B actuated by the driving shaft 13. This shaft is driven in any desired manner. I have shown it provided with a crank plate C to which leads the connecting rod connected with the piston rod C in the power cylinder 0 D is a controller, in this case a controller lever, pivotally mounted at D and having at its lower end the arms D D. To the arm 1) is connected one end of the rod D, the other end ol which is pivoted to the link D which is connected to the throttle valve D.

'The parts are so related that when the controller lever D is upright in the osition shown in full linesthe throttle valve is closed and the machine out of operation.

To the arll- D is attached one end of the rod E, the u per end of which is pivoted to the link E liaving the are shaped slot E The link is connected to the lower rocker arm E, and the 1. pper rocker arm E to the The eccentrics each of the two sides of the bucket.

G is a cable from the eye G which is connected by the link G" to one arm G of the a; citizen of the United States, residing at Lav elbow crank lever, the other arm of which G is provided with a roller at'its free end. The two arms of the elbow crank lever are pivoted to the shaft G which is mounted in the side of the pit. The roller G takes under a ledge G formed upon the sides of the bucket. There are four of such arms to They are normally at rest but are rocked when the rollers G engage the ledge G One of these cables is associated with each receptacle or bucket and each cable passes over a pulley G and is connected with the controller lever D. The controller lever Dhas preferably associated with it a dash-pot structure-J hav ing the pitman J 1 and the link J 2 which has a long slot J through which passes the pin J on the controller lever.

K is a ortion of a bin and L a discharge opening tlierein from which material, as for example coal, is discharged into-the bucket .when it reaches the lower end of its excur sion. Some automatic device is usually employed but as this is no part of my present invention I do not showthe same. Moreover, so far as the hoisting mechanism is concerned it will operate in precisely the same manner whether hand or automatic mechanism is employed for filling the buckets.

It will be understood that these severalfeatures can be greatly varied without departing from the s lrit of my invention, and

Iwish it'to be un erstood that my drawings iii) are means for automatically .filling each .than two buckets could be employed.

The use and operation of my invention are 1 l0 as. follows: position shown in Fig. 1 they are connected by a hoisting cable and the drum around which the cables are wound. One bucket is at the top of its shaft while the other is at the bottom of its shaft. Under these circum stances the controller or controller lever-D stood, referring to Fig. 3, that the lever was in the position of the dotted lines or turned at the to toward the left when this action began. he bucket, the. moment it strikes the elbow crank levers, depresses them freely and rapidly and the lever is brought from the position of the dotted lines to-the vertical position shown in Fig. 3 very promptly because the pin J moves freely through the slot J This, however, throttles the power.

The increasing weight of the material in the bucket tends to lower it further but now it operates against the action of the .dashot so that its downward motion. is impe ed. Eventually, however, the continued pull on the cable will throw the lever over toward the left at the top in the position of the second dotted line. This action will reverse the engine by its action on the reverser or reversing mechanism illustrated in Fig. 3. However, the parts are so related that at this moment the top bucket has emptied its load, the lower bucket is full, and the reversed engine applying the power causes the full bucket to rise and the empty one to descend. When they approach the limits of these movements the same action is repeated in an inverse sense and thus I have provided an automatically operating device. If it be associated with automatic bucket loading and emptying devices it will be seen that the apparatus will thus continue to operate without attention from the operator.

I claim:

1. In an automatic hoisting device, the combination of two receptacles with a hoisting cable, the receptacles associated so that one is at one end of its excursion while the oilier is at the opposite end of its excursion, a power device for operating the cable, a power reverser and a power throttle for the same, a controller connected with the reverser and the throttle, a lost motion-device and a dash-pot device connected with such controller, and two controller motors comprising each a movable part in the oath of WVhen the buckets are in the one of the receptacles and a connection thence to the controller to alternately oper ate the same in opposite directions.

2. In an automatic hoisting device, the combination of two receptacles with a hoisting cable, the receptacles associated so that one is at one end of its excursion while the other is at the opposite end of its excursion, a

power device for operating the cable, a

power reverser and a power throttle forthe same, a controller connected with the reverser and the throttle, a lost motion device connected with the controller, and two con troller motors comprising each a movable partin the path of one of the receptacles and a connection thence to the controller to alternately operate the same in opposite directions.

3. In an automatic hoisting device, the combination of two receptacles with a hoisting cable, the receptacles associated so that one is at one end of its excursion while the other is at the opposite end of its excursion, a

power device for operating the cable, a power.

reverser and a power throttle for the same, a controller connectedwith the reverser and the throttle, and two controller motors co mprising each a movable part in the path of one of the receptacles and a connection thence to the controller to alternately operate the same in opposite directions.

4. In an' automatichoisting. device, the combination of a receptacle with a hoisting cable, a power device for operating the cable, a power reverser and a power throttle for the smile, a controller connected with the reverser and the throttle, a lost motion device and a dash-pot device connected with such controller, and a controller motor comprising a movable part in the path of the receptacle and a connection thence to the controller.

5. In an automatic hoisting device, the combination of a receptacle with a hoisting cable, a power device for operating the cable, a power reverser and a power throttle for the same, a controller connected with the reverser and the throttle, a lost motion device connected with such controller, and a con troller motor comprising a movable part in the path of the receptacle and a connection thence to the controller.

6. In. an automatic hoisting device, the combination of a receptacle with a hoisting cable, a power device for operating the cable, a power reverser and a power throttle for the same, a controller connected with the reverser an ,1 the thuottlc, and a controller motor comprising a movable part in the path of one of the receptacles and a connection thence to the controller.

7. In an automatic hoisting device, the

combination. of two receptacles with a hoisting cable, the receptacles associated so that one is at one end of its excursion while the other is at the opposite end of excursion, a

tonnes one of the receptacles and a connection thence to the controller lever .to alternately operate the same in opposite directions.

8. In an automatic hoisting device, the

' combination ofltwo receptacles with a hoisting cable, the receptacles associated so that one is at one, end of its excursion while the other'is-at the posits end of its excursion, a power "device; for operating the cable, a power reverser' and ell-power throttle for the same, a controller lever connected with the reverser and the throttle, a lost motion device connected with such controller lever, and two part in the path of one of therece tacles and a connection thence to the contro er lever to alternately operate the same in opposite directions.

9, In an automatic hoisting. combination of two receptacles with a hoisting cable, the receptacles associated so that one is at one end of its excursion while the otheris at the opposite end of its excursion, a power device for operating the cable, a power reverser and a power throttle for the same, a controller lever connected with the reverser and the throttle, and two controller motors comprising each a movable part in the path of one of the receptacles and a connection thence to the controller lever to alternately operate the same in opposite directions.

" EDWARD E. BARRETT.

. Witnesses EDNA K. REYNOLDS, LUCY A. FALKENBERG.

device, the l 

